Power distribution method and device of hydrogen production system and hydrogen production system

Abstract

The application discloses a power distribution method and device of a hydrogen production system and the hydrogen production system, and belongs to the technical field of hydrogen production. The method comprises the following steps: acquiring a first energy supply power of a new energy supply module; determining a first constraint condition of an energy scheduling model corresponding to the hydrogen production device based on the first energy supply power; and solving the energy scheduling model under the constraints of the first constraint condition and a second constraint condition of each hydrogen production unit to obtain a target operation power of each hydrogen production unit, wherein a target function of the energy scheduling model is at least one of the minimum operation energy consumption and the minimum start-stop number of the hydrogen production device, and a decision variable of the energy scheduling model is the operation power of each hydrogen production unit in the hydrogen production device. The method can realize the minimum operation power consumption and start-stop number of the hydrogen production device, match the volatility and intermittence of the new energy supply, effectively improve the energy efficiency of the system, and prolong the service life of the equipment.

Description

Technical Field

[0001] This application belongs to the field of hydrogen production technology, and in particular relates to a power distribution method, apparatus and hydrogen production system for a hydrogen production system. Background Technology

[0002] Hydrogen energy, as an important component of clean energy, has enormous market demand potential. In recent years, significant progress has been made in new energy hydrogen production technologies, with photovoltaic, wind power, and other new energy hydrogen production technologies gradually maturing and achieving large-scale application.

[0003] The intermittent and fluctuating nature of renewable energy sources such as wind and solar power can alter the operating point of equipment like electrolyzers, thus affecting the lifespan of hydrogen production equipment.

[0004] How to allocate the power supply of a hydrogen production system, improve system energy efficiency, and extend equipment lifespan is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a power allocation method, apparatus, and hydrogen production system for a hydrogen production system, which can finely allocate the power supply, effectively improve system energy efficiency, and extend equipment service life.

[0006] In a first aspect, this application provides a power distribution method for a hydrogen production system, the hydrogen production system including an energy supply device and a hydrogen production device, the hydrogen production device including multiple hydrogen production units, the energy supply device including a new energy supply module, and the method comprising:

[0007] Obtain the first power supply of the new energy supply module;

[0008] Based on the first power supply, determine the first constraint condition of the energy dispatch model corresponding to the hydrogen production device;

[0009] Under the constraints of the first constraint and the second constraint of each hydrogen production unit, the energy scheduling model is solved to obtain the target operating power of each hydrogen production unit. The second constraint is used to limit the operating power of the hydrogen production unit.

[0010] The objective function of the energy scheduling model is to minimize at least one of the operating energy consumption and start-up / shutdown frequency of the hydrogen production unit, and the decision variable of the energy scheduling model is the operating power of each hydrogen production unit in the hydrogen production unit.

[0011] According to the power allocation method of the hydrogen production system in this application, the first constraint condition of the energy dispatch model is determined by the first power supply of the new energy supply module. Combined with the second constraint condition of each hydrogen production unit, the target operating power that minimizes at least one of the operating power consumption and start-up number of the hydrogen production device is solved. By matching the fluctuation and intermittency of the new energy supply, the power supply is finely allocated, which effectively improves the system energy efficiency and extends the service life of the equipment.

[0012] According to one embodiment of this application, the first constraint condition for determining the energy dispatch model corresponding to the hydrogen production device based on the first power supply includes:

[0013] When the first power supply is greater than or equal to the upper limit of the operating power of the hydrogen production device, the first constraint is that the power allocated by the energy dispatch model is equal to the upper limit of the operating power of the hydrogen production device.

[0014] When the first power supply is less than the upper limit of the operating power of the hydrogen production device, the first constraint is that the power allocated by the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production device.

[0015] According to one embodiment of this application, the first constraint condition for determining the energy dispatch model corresponding to the hydrogen production device based on the first power supply includes:

[0016] If the energy supply device further includes an energy storage module, the first constraint condition is determined based on the first energy supply power and the first state of charge of the energy storage module.

[0017] According to one embodiment of this application, when the first power supply is greater than or equal to the lower limit of the operating power of the hydrogen production device, and the first state of charge is between the upper and lower limits of the state of charge corresponding to the energy storage module, determining the first constraint condition based on the first power supply and the first state of charge of the energy storage module includes:

[0018] When the first power supply is greater than or equal to the upper limit of the operating power of the hydrogen production device, the first constraint is that the power allocated by the energy dispatch model is equal to the sum of the upper limit of the operating power of the hydrogen production device and the rechargeable power of the energy storage module.

[0019] When the first power supply is less than the upper limit of the operating power of the hydrogen production device, the first constraint is that the power allocated by the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production device.

[0020] According to one embodiment of this application, when the first power supply is less than the lower limit of the operating power of the hydrogen production device, and the first state of charge is between the upper and lower limits of the state of charge corresponding to the energy storage module, determining the first constraint condition based on the first power supply and the first state of charge of the energy storage module includes:

[0021] When the sum of the first power supply and the discharge power of the energy storage module is greater than or equal to the upper limit of the operating power of the hydrogen production device, the first constraint is that the allocated power of the energy dispatch model is equal to the upper limit of the operating power of the hydrogen production device.

[0022] When the sum of the first power supply and the discharge power of the energy storage module is less than the upper limit of the operating power of the hydrogen production device and greater than or equal to the lower limit of the operating power of the hydrogen production device, the first constraint condition is that the allocated power of the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production device.

[0023] According to one embodiment of this application, when the first power supply is less than the lower limit of the operating power of the hydrogen production device but greater than or equal to the lower limit of the operating power of the hydrogen production unit, and the first state of charge is less than the lower limit of the state of charge of the energy storage module, determining the first constraint condition based on the first power supply and the first state of charge of the energy storage module includes:

[0024] When the current time is during the off-peak electricity period when the hydrogen production system is connected to the grid, the first constraint is that the allocated power of the energy dispatch model is equal to the lower limit of the operating power of the hydrogen production device, and the allocated power of the energy dispatch model includes the first power supply and the second power supply of the grid.

[0025] If the current time is not during the off-peak electricity period when the hydrogen production system is connected to the power grid, the first constraint is that the allocated power of the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production device, and the allocated power of the energy dispatch model includes the first power supply.

[0026] According to one embodiment of this application, when the first power supply is less than the lower limit of the operating power of the hydrogen production unit and the first state of charge is less than the lower limit of the state of charge of the energy storage module, determining the first constraint condition based on the first power supply and the first state of charge of the energy storage module includes:

[0027] If the current time is not during the off-peak electricity period when the hydrogen production system is connected to the power grid, the power allocated by the energy dispatch model is 0.

[0028] According to one embodiment of this application, the step of solving the energy dispatch model under the constraints of the first constraint and the second constraints of each of the hydrogen production units to obtain the target operating power of each of the hydrogen production units includes:

[0029] The energy scheduling model is solved using a non-dominated sorting genetic algorithm to obtain the optimal solution set that satisfies the first constraint and the second constraint.

[0030] Based on the optimal solution set, the target operating power of each hydrogen production unit is determined.

[0031] According to one embodiment of this application, the second constraint includes the operating power of the hydrogen production unit being within the allowable power range of the hydrogen production unit, and the decision variable corresponding to the hydrogen production unit in the energy scheduling model being 0 when the operating power of the hydrogen production unit is less than the corresponding lower limit of operating power.

[0032] Secondly, this application provides a power distribution device for a hydrogen production system. The hydrogen production system includes an energy supply device and a hydrogen production device. The hydrogen production device includes multiple hydrogen production units, and the energy supply device includes a new energy supply module. The power distribution device includes:

[0033] The acquisition module is used to acquire the first power supply of the new energy supply module;

[0034] The first processing module is used to determine the first constraint condition of the energy dispatch model corresponding to the hydrogen production device based on the first power supply.

[0035] The second processing module is used to solve the energy scheduling model under the constraints of the first constraint and the second constraint of each hydrogen production unit to obtain the target operating power of each hydrogen production unit. The second constraint is used to limit the operating power of the hydrogen production unit.

[0036] The objective function of the energy scheduling model is to minimize at least one of the operating energy consumption and start-up / shutdown frequency of the hydrogen production unit, and the decision variable of the energy scheduling model is the operating power of each hydrogen production unit in the hydrogen production unit.

[0037] According to the power distribution device of the hydrogen production system of this application, the first constraint condition of the energy dispatch model is determined by the first power supply of the new energy supply module, and the second constraint condition of each hydrogen production unit is combined to solve the target operating power that minimizes at least one of the operating power consumption and start-up number of the hydrogen production device. This matches the fluctuation and intermittency of the new energy supply, and the power supply is finely allocated, which effectively improves the system energy efficiency and extends the service life of the equipment.

[0038] Thirdly, this application provides a hydrogen production system, comprising:

[0039] The device includes an energy supply unit and a hydrogen production unit, wherein the hydrogen production unit includes multiple hydrogen production units and the energy supply unit includes a new energy supply module, and the energy supply unit is connected to the hydrogen production unit.

[0040] The power distribution device of the hydrogen production system described in the second aspect above is connected to the power supply device and the hydrogen production device.

[0041] According to one embodiment of this application, the power supply device further includes an energy storage module.

[0042] Fourthly, this application provides an electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the power distribution method of the hydrogen production system as described in the first aspect above.

[0043] Fifthly, this application provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the power distribution method of the hydrogen production system as described in the first aspect above.

[0044] In a sixth aspect, this application provides a computer program product, including a computer program that, when executed by a processor, implements the power distribution method for a hydrogen production system as described in the first aspect above.

[0045] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0046] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0047] Figure 1 This is a schematic flowchart of the power distribution method for the hydrogen production system provided in the embodiments of this application;

[0048] Figure 2 This is a schematic diagram showing the relationship between energy consumption and load ratio of the hydrogen production unit provided in the embodiments of this application;

[0049] Figure 3 This is a schematic diagram of the power distribution device of the hydrogen production system provided in the embodiments of this application;

[0050] Figure 4 This is a schematic diagram of the hydrogen production system provided in the embodiments of this application;

[0051] Figure 5 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application. Detailed Implementation

[0052] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0053] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0054] The following description, in conjunction with the accompanying drawings, details the power distribution method, power distribution device 300, hydrogen production system, electronic equipment, and readable storage medium of the hydrogen production system provided in this application, through specific embodiments and application scenarios.

[0055] The power allocation method for a hydrogen production system provided in this application embodiment can be executed by an electronic device or a functional module or entity in an electronic device that can implement the power allocation method for the hydrogen production system.

[0056] The hydrogen production system provided in this application includes an energy supply device 420 and a hydrogen production device 410. The hydrogen production device 410 includes multiple hydrogen production units, and the energy supply device 420 includes a new energy supply module.

[0057] The power supply device 420 is connected to the hydrogen production device 410, and the power supply device 420 provides electrical energy to the hydrogen production unit in the hydrogen production device 410 to produce hydrogen.

[0058] The hydrogen production unit is an operating unit used to produce hydrogen. The hydrogen production unit can be an electrolyzer, such as an alkaline water electrolyzer, a proton exchange membrane water electrolyzer, a high-temperature solid oxide water electrolyzer, or a solid polymer anion exchange membrane water electrolyzer, etc. The embodiments of this application do not limit this.

[0059] A new energy power supply module refers to an operating unit that uses renewable new energy sources to generate electricity. New energy power supply modules can be photovoltaic power generation equipment, wind power generation equipment, etc. The power supply of new energy sources such as wind and photovoltaic has the characteristics of intermittency and fluctuation.

[0060] In actual implementation, the power supply device 420 may also include a grid interface, that is, the hydrogen production system is connected to the grid, which can feed back the excess electricity provided by the new energy power supply module to the grid, or it can supply hydrogen production unit with electricity from the grid.

[0061] like Figure 1 As shown, the power distribution method of the hydrogen production system includes steps 110, 120 and 130.

[0062] Step 110: Obtain the first power supply of the new energy power supply module.

[0063] In this step, the first power output of the new energy supply module is obtained. The new energy supply is intermittent and fluctuates, and the first power output of the new energy supply module is different at different times.

[0064] In actual operation, the first power supply can be provided entirely to the hydrogen production unit 410 for hydrogen production, or a portion of the first power supply can be provided to the hydrogen production unit 410 for hydrogen production.

[0065] Step 120: Based on the first power supply, determine the first constraint condition of the energy dispatch model corresponding to the hydrogen production device 410.

[0066] It should be noted that a mathematical model, namely an energy scheduling model, is established for the power distribution among the various hydrogen production units in the hydrogen production device 410. The energy scheduling model can simulate the power distribution of multiple hydrogen production units based on the power distribution input to the hydrogen production device 410, calculate the operating energy consumption and start-up / shutdown frequency of the hydrogen production device 410, and determine the optimal power distribution scheme through optimization algorithms.

[0067] The objective function of the energy scheduling model is to minimize at least one of the operating energy consumption and the number of start-ups and shutdowns of the hydrogen production unit 410, and the decision variable of the energy scheduling model is the operating power of each hydrogen production unit in the hydrogen production unit 410.

[0068] For example, hydrogen production unit 410 includes n hydrogen production units, and the objective function of the energy dispatch model is as follows:

[0069] F(P j min=Q j (P j )+N j (P j )

[0070]

[0071] The decision variables for the energy dispatch model are:

[0072] Where i represents the hydrogen production unit number, j represents the current time, and Q j (P j ) represents the operating energy consumption of hydrogen production unit 410 at time j, N j (P j () indicates the number of times the hydrogen production unit 410 is started and stopped at time j. This represents the operating power of the i-th hydrogen production unit at time j.

[0073] In actual operation, the number of start-ups and shutdowns of the hydrogen production unit 410 can be determined based on the operating status of the hydrogen production unit at the previous moment and the current moment. If the operating status of a hydrogen production unit is different at the previous moment and the current moment, the number of start-ups and shutdowns is increased by one. If the operating status of a hydrogen production unit is the same at the previous moment and the current moment, the number of start-ups and shutdowns remains unchanged.

[0074] For example, for the i-th hydrogen production unit, if the hydrogen production unit is in a shutdown state at time j-1, it is represented as: At time j, the hydrogen production unit is in operation, which is represented as: at this time The number of start-stop cycles N = N + 1.

[0075] For example, for the i-th hydrogen production unit, if the hydrogen production unit is in a shutdown state at time j-1, it is represented as: At time j, the hydrogen production unit is in a shutdown state, which is represented as: at this time The number of start-stop cycles N = N + 0.

[0076] in, The numerical value can be determined as follows:

[0077]

[0078] This represents the operating power of the i-th hydrogen production unit at time j. This represents the operating status of the i-th hydrogen production unit at time j. This indicates that the i-th hydrogen production unit is in operation at time j. This indicates that the i-th hydrogen production unit is in a shutdown state at time j.

[0079] In actual operation, the operating energy consumption of the hydrogen production unit 410 can be the sum of the operating energy consumption of each hydrogen production unit. For the operating energy consumption of a single hydrogen production unit, the operating energy consumption of the hydrogen production unit can be determined according to the load ratio of the hydrogen production unit.

[0080] For example, such as Figure 2 As shown in the diagram, based on the relationship between the energy consumption and load ratio of the hydrogen production unit, the operating energy consumption of the hydrogen production unit can be found. It can be seen that the operating energy consumption of the hydrogen production unit is relatively high when the load ratio is in the range of 30%-60% and 90%-100%, while the operating energy consumption of the hydrogen production unit is relatively low when the load ratio is in the range of 60%-90%.

[0081] In practice, the objective function of the energy scheduling model can be to minimize the number of start-stop cycles, or to minimize both operating energy consumption and the number of start-stop cycles.

[0082] Understandably, when the objective function of the energy scheduling model is to minimize operating energy consumption and the number of start-stop cycles, corresponding weighting coefficients can be added to operating energy consumption and the number of start-stop cycles.

[0083] For example, hydrogen production unit 410 includes n hydrogen production units, and the objective function of the energy dispatch model is as follows:

[0084] F(P j min=k1Q j (P j )+k2N j (P j )

[0085]

[0086] The decision variables for the energy dispatch model are:

[0087] Where i represents the hydrogen production unit number, j represents the current time, and Q j (P j () represents the operating energy consumption of hydrogen production unit 410 at time j, k1 represents the weighting coefficient of operating energy consumption, and N j (P j () represents the number of times the hydrogen production unit 410 is started and stopped at time j, and k2 represents the weighting coefficient of the number of start and stop times. This represents the operating power of the i-th hydrogen production unit at time j.

[0088] In step 120, the first constraint condition for solving the energy dispatch model is set according to the first power supply that the new energy power supply module can provide.

[0089] It should be noted that the first constraint is a constraint in the energy dispatch model that limits the power allocation of the input hydrogen production device 410. When only the new energy supply module provides power, the first constraint is set according to the power supply of the new energy supply module. When other energy supply modules provide power, the first constraint can also be set in combination with the power supply of other energy supply modules.

[0090] Step 130: Under the constraints of the first constraint and the second constraint of each hydrogen production unit, solve the energy dispatch model to obtain the target operating power of each hydrogen production unit.

[0091] The second constraint is used to limit the operating power of the hydrogen production unit.

[0092] It should be noted that the second constraint is a constraint in the energy dispatch model that limits the operating power of the hydrogen production unit. Different hydrogen production units may correspond to different second constraints.

[0093] In this embodiment, the solution space of the energy dispatch model is restricted to the feasible region by the first constraint condition and the second constraint condition of each hydrogen production unit, and the energy dispatch model is solved to obtain effective candidate solutions within the feasible region.

[0094] In this embodiment, the energy scheduling model is solved by the first constraint and the second constraint of each hydrogen production unit to determine the target operating power of each hydrogen production unit that minimizes the operating power consumption and start-up frequency of the hydrogen production device 410. Power is allocated to each hydrogen production unit according to the target operating power, and the power supply is finely allocated. The operating power consumption and start-up frequency of the hydrogen production device 410 are minimized, which can effectively improve the system energy efficiency and extend the service life of the equipment.

[0095] It is understandable that if the target operating power of a hydrogen production unit is 0, it means that the hydrogen production unit is controlled to shut down, or the hydrogen production unit is kept in a shutdown state (when the hydrogen production unit was originally in a shutdown state).

[0096] According to the power allocation method of the hydrogen production system provided in the embodiments of this application, the first constraint condition of the energy dispatch model is determined by the first power supply of the new energy supply module, and the second constraint condition of each hydrogen production unit is combined to solve the target operating power that minimizes the operating power consumption and start-up times of the hydrogen production device 410. The fluctuation and intermittency of the new energy supply are matched to refine the power supply, effectively improve the system energy efficiency and extend the service life of the equipment.

[0097] In some embodiments, determining the first constraint condition of the energy dispatch model corresponding to the hydrogen production device 410 based on the first power supply may include:

[0098] When the first power supply is greater than or equal to the upper limit of the operating power of the hydrogen production unit 410, the first constraint is that the power allocated by the energy dispatch model is equal to the upper limit of the operating power of the hydrogen production unit 410.

[0099] When the first power supply is less than the upper limit of the operating power of the hydrogen production unit 410, the first constraint is that the power allocated by the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production unit 410.

[0100] Understandably, the upper limit of the operating power of the hydrogen production unit 410 is equal to the sum of the upper limits of the operating power of each hydrogen production unit.

[0101] In this embodiment, when the first power supply is greater than or equal to the upper limit of the operating power of the hydrogen production device 410, it indicates that the new energy power supply module has sufficient power supply to meet the energy demand of each hydrogen production unit of the hydrogen production device 410 operating at the upper limit of the operating power, and there is also surplus electrical energy.

[0102] When the first power supply is greater than or equal to the upper limit of the operating power of the hydrogen production unit 410, the power allocated by the energy dispatch model is set to the upper limit of the operating power of the hydrogen production unit 410. That is, the power allocated by the energy dispatch model will not exceed the upper limit of the operating power of the hydrogen production unit 410, thus ensuring the effectiveness of the energy dispatch model solution.

[0103] It should be noted that the power allocation of the energy dispatch model refers to the total power allocated to each hydrogen production unit. The maximum power allocation of the energy dispatch model can be the upper limit of the operating power of the hydrogen production unit 410. When the first power supply is greater than the upper limit of the operating power, the power allocation of the energy dispatch model can be the upper limit of the operating power of the hydrogen production unit 410. The remaining electrical energy (the first power supply minus the upper limit of the operating power of the hydrogen production unit 410) can be connected to the grid, supplied to other electrical equipment, or used to charge energy storage.

[0104] For example, when the first power supply of the new energy supply module is greater than or equal to the upper limit of the operating power of the hydrogen production device 410, the power allocation of the energy dispatch model is set to the upper limit of the operating power of the hydrogen production device 410.

[0105] In this embodiment, the surplus electrical energy is obtained by subtracting the upper limit of the operating power of the hydrogen production device 410 from the first power supply power. When the grid electricity price is high, the surplus electrical energy can be fed back to the grid to increase benefits. When the grid electricity price is low, the surplus electrical energy can be input to the energy storage module for storage.

[0106] In this embodiment, when the first power supply is less than the upper limit of the operating power of the hydrogen production device 410, the first power supply of the new energy power supply module can be fully supplied to the hydrogen production device 410 for hydrogen production. The power allocation of the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production device 410. At least one hydrogen production unit in the hydrogen production device 410 is not operating at the upper limit of the operating power.

[0107] In actual implementation, the hydrogen production units in the hydrogen production unit 410 can be selected from the same type and specifications of equipment, or different types and specifications of equipment. The upper limit of the operating power of each hydrogen production unit can be the same or different.

[0108] Taking the hydrogen production unit 410 as an example, where each hydrogen production unit has the same upper limit of operating power, and the new energy supply module includes photovoltaic power generation equipment and wind power generation equipment.

[0109] The first constraint of the energy dispatch model can be as follows:

[0110]

[0111] Where i represents the hydrogen production unit number, and j represents the current time. Let j represent the output power of photovoltaic and wind power (i.e., the first power supply) at time j. This represents the operating power of the i-th hydrogen production unit at time j. This represents the power allocated by the energy scheduling model at time j. This indicates the upper limit of the operating power of the hydrogen production unit, and n represents the total number of hydrogen production units in the hydrogen production unit 410. This indicates the upper limit of the operating power of the hydrogen production unit 410.

[0112] In some embodiments, the second constraint includes that the operating power of the hydrogen production unit is within the allowable power range of the hydrogen production unit, and that when the operating power of the hydrogen production unit is less than the corresponding lower limit of operating power, the decision variable corresponding to the hydrogen production unit in the energy dispatch model is 0.

[0113] It is understandable that the second constraint is a constraint in the energy dispatch model that limits the operating power of the hydrogen production unit. This can include constraints on the operating power of the hydrogen production unit itself, as well as constraints on the operating power of the hydrogen production unit when solving the energy dispatch model.

[0114] The second constraint on the operating power of the hydrogen production unit is that the operating power of the hydrogen production unit is within the corresponding allowable power range. When power is allocated, the operation of the hydrogen production unit will not exceed the limit, ensuring the normal operation of the hydrogen production system.

[0115] The second constraint condition for limiting the operating power of the hydrogen production unit in the energy dispatch model is as follows: when the operating power of the hydrogen production unit is less than the corresponding lower limit of operating power, the decision variable corresponding to the hydrogen production unit in the energy dispatch model is 0. This constrains the operating power of a single hydrogen production unit to be between the lower limit and the upper limit of operating power. When the operating power of the hydrogen production unit is less than the corresponding lower limit of operating power, the decision variable is assigned a value of 0 to satisfy the lower limit of hydrogen production load and ensure the effectiveness of hydrogen production by the hydrogen production unit.

[0116] It should be noted that the two extreme values ​​of the allowable power range of the hydrogen production unit are 0 and the upper limit of the operating power. That is, the hydrogen production unit itself can operate between 0 and the upper limit of the operating power. When the operating power of the hydrogen production unit is less than the corresponding lower limit of the operating power (for example, the lower limit of the operating power is equal to 30% of the upper limit of the operating power), it cannot produce hydrogen effectively and can be shut down.

[0117] For example, hydrogen production device 410 may include n hydrogen production units. For the i-th hydrogen production unit among the n hydrogen production units, the second constraint is as follows:

[0118]

[0119] Where i represents the hydrogen production unit number, and j represents the current time. This represents the operating power of the i-th hydrogen production unit at time j. This indicates the upper limit of the operating power of the hydrogen production unit. This indicates the lower limit of the operating power of the hydrogen production unit.

[0120] In this embodiment, the decision variables corresponding to the hydrogen production unit in the energy dispatch model It can be from 0 to Take the value when The decision variable is the operating power of the hydrogen production unit. An energy dispatch model is then solved when... With the decision variable set to 0, the energy scheduling model is solved.

[0121] In some embodiments, step 120, determining the first constraint condition of the energy dispatch model corresponding to the hydrogen production device 410 based on the first power supply, may include:

[0122] If the power supply device 420 also includes an energy storage module, the first constraint condition is determined based on the first power supply power and the first state of charge of the energy storage module.

[0123] In this embodiment, the power allocated to the hydrogen production device 410 in the energy dispatch model includes the power supplied by the new energy supply module and the energy storage module. The energy storage module can maintain the normal operation of the hydrogen production device 410 when the output of the new energy supply module is insufficient.

[0124] The first state of charge can be the ratio of the remaining capacity to the full charge capacity of the energy storage module. Based on the first state of charge of the energy storage module, it can be determined how much power the energy storage module can provide to the hydrogen production device 410.

[0125] Understandably, the first constraint is a constraint in the energy dispatch model that limits the power allocated to the hydrogen production device 410. The energy supply device 420 includes a new energy supply module and an energy storage module. Based on the first energy supply power and the first state of charge, the energy supply power that the energy supply device 420 can provide is analyzed, and the first constraint is set.

[0126] In some embodiments, when the first power supply is greater than or equal to the lower limit of the operating power of the hydrogen production device 410, and the first state of charge is between the upper and lower limits of the state of charge corresponding to the energy storage module, a first constraint condition is determined based on the first power supply and the first state of charge of the energy storage module, including:

[0127] When the first power supply is greater than or equal to the upper limit of the operating power of the hydrogen production device 410, the first constraint is that the power allocated by the energy dispatch model is equal to the sum of the upper limit of the operating power of the hydrogen production device 410 and the rechargeable power of the energy storage module.

[0128] When the first power supply is less than the upper limit of the operating power of the hydrogen production unit 410, the first constraint is that the power allocated by the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production unit 410.

[0129] In this embodiment, the first power supply is greater than or equal to the lower limit of the operating power of the hydrogen production device 410, indicating that the output of the new energy power supply module is sufficient. The first state of charge is between the upper and lower limits of the state of charge corresponding to the energy storage module, indicating that the energy storage module can perform charging and discharging operations.

[0130] Understandably, to prevent overcharging or over-discharging of the energy storage module, the state of charge of the energy storage module meets certain upper and lower limits of the state of charge. When the upper limit of the state of charge of the energy storage module is exceeded, the energy storage module cannot be charged, and when the lower limit of the state of charge of the energy storage module is exceeded, the energy storage module cannot be discharged.

[0131] In this embodiment, the new energy supply module has sufficient output, and the energy storage module can perform charging and discharging operations. If the first power supply is greater than or equal to the upper limit of the operating power of the hydrogen production device 410, the hydrogen production device 410 has surplus power while operating at the upper limit of the operating power. The power allocated by the energy dispatch model is partly supplied to the hydrogen production device 410 for hydrogen production and partly supplied to the energy storage module for charging and storage.

[0132] If the first power supply is less than the upper limit of the operating power of the hydrogen production device 410, the power allocated by the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production device 410, and there is no surplus electrical energy to be provided to the energy storage module.

[0133] Taking the hydrogen production unit 410 as an example, where each hydrogen production unit has the same upper limit of operating power, and the energy supply unit 420 includes a new energy supply module and an energy storage module, with the new energy supply module including photovoltaic power generation equipment and wind power generation equipment.

[0134] The first constraint of the energy dispatch model can be as follows:

[0135]

[0136] Where i represents the hydrogen production unit number, and j represents the current time. Let j represent the output power of photovoltaic and wind power (i.e., the first power supply) at time j. This represents the operating power of the i-th hydrogen production unit at time j. This represents the power allocated by the energy scheduling model at time j. This indicates the upper limit of the operating power of the hydrogen production unit, and n represents the total number of hydrogen production units in the hydrogen production unit 410. This indicates the upper limit of the operating power of the hydrogen production unit 410. This indicates the lower limit of the operating power of the hydrogen production unit 410. This indicates the rechargeable power of the energy storage device.

[0137] Understandably, when there is residual electrical energy after deducting the upper limit of the operating power of the hydrogen production unit 410 and the rechargeable power of the energy storage unit from the first power supply, the residual electrical energy can be connected to the power grid, supplied to other electrical equipment, or disposed of as waste.

[0138] In some embodiments, when the first power supply is less than the lower limit of the operating power of the hydrogen production device 410, and the first state of charge is between the upper and lower limits of the state of charge corresponding to the energy storage module, a first constraint condition is determined based on the first power supply and the first state of charge of the energy storage module, including:

[0139] When the sum of the first power supply and the discharge power of the energy storage module is greater than or equal to the upper limit of the operating power of the hydrogen production device 410, the first constraint is that the allocated power of the energy dispatch model is equal to the upper limit of the operating power of the hydrogen production device 410.

[0140] When the sum of the first power supply and the discharge power of the energy storage module is less than the upper limit of the operating power of the hydrogen production device 410 but greater than or equal to the lower limit of the operating power of the hydrogen production device 410, the first constraint is that the power allocated by the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production device 410.

[0141] In this embodiment, the first power supply is less than the lower limit of the operating power of the hydrogen production device 410, indicating that the output of the new energy power supply module is insufficient. The first state of charge is between the upper and lower limits of the state of charge corresponding to the energy storage module, indicating that the energy storage module can perform charging and discharging operations. The energy scheduling module can allocate the first power supply and the dischargeable power of the energy storage module.

[0142] In this embodiment, if the output of the new energy supply module is insufficient, the energy storage module can perform charging and discharging operations. If the sum of the first power supply and the discharge power of the energy storage module is greater than or equal to the upper limit of the operating power of the hydrogen production device 410, the first power supply and the discharge power of the energy storage module are allocated to each hydrogen production unit, and the hydrogen production device 410 can operate at the upper limit of the operating power.

[0143] If the sum of the first power supply and the discharge power of the energy storage module is less than the upper limit of the operating power of the hydrogen production device 410 but greater than or equal to the lower limit of the operating power of the hydrogen production device 410, the power allocation of the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production device 410.

[0144] Taking the hydrogen production unit 410 as an example, where each hydrogen production unit has the same upper limit of operating power, and the energy supply unit 420 includes a new energy supply module and an energy storage module, with the new energy supply module including photovoltaic power generation equipment and wind power generation equipment.

[0145] The first constraint of the energy dispatch model can be as follows:

[0146]

[0147] Where i represents the hydrogen production unit number, and j represents the current time. Let j represent the output power of photovoltaic and wind power (i.e., the first power supply) at time j. This represents the operating power of the i-th hydrogen production unit at time j. This represents the power allocated by the energy scheduling model at time j. This indicates the upper limit of the operating power of the hydrogen production unit, and n represents the total number of hydrogen production units in the hydrogen production unit 410. This indicates the upper limit of the operating power of the hydrogen production unit 410. This indicates the lower limit of the operating power of the hydrogen production unit 410. This indicates the discharge power of the energy storage device.

[0148] In some embodiments, when the first power supply is less than the lower limit of the operating power of the hydrogen production device 410 but greater than or equal to the lower limit of the operating power of the hydrogen production unit, and the first state of charge is less than the lower limit of the state of charge of the energy storage module, a first constraint condition is determined based on the first power supply and the first state of charge of the energy storage module, including:

[0149] When the current time is during the off-peak electricity period when the hydrogen production system is connected to the grid, the first constraint is that the allocated power of the energy dispatch model is equal to the lower limit of the operating power of the hydrogen production unit 410, and the allocated power of the energy dispatch model includes the first power supply and the second power supply of the grid.

[0150] If the current time is not during the off-peak electricity period when the hydrogen production system is connected to the grid, the first constraint is that the allocated power of the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production device 410, and the allocated power of the energy dispatch model includes the first power supply.

[0151] It is understandable that the hydrogen production unit 410 can also be connected to the power grid, and the power allocated to the hydrogen production unit 410 in the energy dispatch model can also include the power supplied by the power grid.

[0152] In this embodiment, the first power supply is less than the lower limit of the operating power of the hydrogen production device 410 but greater than or equal to the lower limit of the operating power of the hydrogen production unit, indicating that the output of the new energy power supply module is insufficient, but it can at least supply power to one hydrogen production unit. The first state of charge is less than the lower limit of the state of charge of the energy storage module, indicating that the energy storage module cannot discharge.

[0153] In this embodiment, if the output of the new energy supply module is insufficient and the energy storage module cannot discharge, and if the current time of power allocation is during a low-price off-peak electricity period, power can be drawn from the grid to maintain the hydrogen production device 410 at the lower limit of operating power, thereby maintaining the hydrogen production state of the hydrogen production device 410 at a lower cost.

[0154] If the current time of power allocation is not during off-peak hours, the energy dispatch model will allocate the first power supply and will not cut off power from the grid.

[0155] Taking the hydrogen production unit 410 as an example, each hydrogen production unit has the same upper limit of operating power, and the new energy supply module includes photovoltaic power generation equipment and wind power generation equipment.

[0156] The first constraint of the energy dispatch model can be as follows:

[0157]

[0158] Where i represents the hydrogen production unit number, and j represents the current time. Let j represent the output power of photovoltaic and wind power (i.e., the first power supply) at time j. This represents the second power supplied from the grid at time j. This represents the operating power of the i-th hydrogen production unit at time j. This represents the power allocated by the energy scheduling model at time j. This indicates the upper limit of the operating power of the hydrogen production unit, and n represents the total number of hydrogen production units in the hydrogen production unit 410. This indicates the lower limit of the operating power of the hydrogen production unit 410. This indicates the lower limit of the operating power of the hydrogen production unit.

[0159] It should be noted that when the lower limit of the operating power of each hydrogen production unit in the hydrogen production device 410 is different, the first power supply power being less than the lower limit of the operating power of the hydrogen production device 410 and greater than or equal to the lower limit of the operating power of the hydrogen production unit means that the first power supply power is less than the sum of the upper limits of the operating power of each hydrogen production unit, and the first power supply power is greater than or equal to the minimum value of the lower limit of the operating power of each hydrogen production unit, so as to ensure that the new energy power supply module can supply the operation of the hydrogen production unit with the lowest lower limit of operating power.

[0160] In some embodiments, when the first power supply is less than the lower limit of the operating power of the hydrogen production unit and the first state of charge is less than the lower limit of the state of charge of the energy storage module, a first constraint condition is determined based on the first power supply and the first state of charge of the energy storage module, including:

[0161] If the current time does not fall within the off-peak electricity period when the hydrogen production system is connected to the grid, the power allocation of the energy dispatch model is 0.

[0162] In this embodiment, the first power supply is less than the lower limit of the operating power of the hydrogen production unit, indicating that the new energy power supply module is seriously underpowered and cannot power the operation of a hydrogen production unit. The first state of charge is less than the lower limit of the state of charge of the energy storage module, indicating that the energy storage module cannot discharge.

[0163] In this embodiment, the new energy supply module is severely underpowered, and the energy storage module cannot discharge. If the current time for power allocation is during a low-price off-peak electricity period, the hydrogen production system can be shut down for economic reasons. At this time, the target power allocation for each hydrogen production unit is 0.

[0164] In some embodiments, step 130, under the constraints of the first constraint and the second constraint of each hydrogen production unit, solves the energy dispatch model to obtain the target operating power of each hydrogen production unit, including:

[0165] The energy scheduling model is solved using a non-dominated sorting genetic algorithm to obtain the optimal solution set that satisfies the first and second constraints.

[0166] Based on the optimal solution set, the target operating power of each hydrogen production unit is determined.

[0167] In this embodiment, under the constraints of the first constraint and the second constraint of each hydrogen production unit, the non-dominated sorting genetic algorithm (NSGA-II) can be used to solve the energy scheduling model. It can perform rapid optimization to minimize the operating energy consumption and start-up / shutdown frequency of the hydrogen production device 410, output the optimal power allocation schemes of different schemes, i.e. the optimal solution set, and finally select the most suitable power allocation scheme from the optimal solution set to obtain the target operating power of each hydrogen production unit.

[0168] In practice, the steps for solving the energy scheduling model using a non-dominated sorting genetic algorithm are as follows:

[0169] Step 1: Initialize the population P0 (the parent population of the first generation), t=0, maximum number of iterations T, and population size N (i.e. the number of individuals (solutions) in the population).

[0170] The initial population P0 is randomly generated and randomly distributed throughout the space.

[0171] Step 2: Non-dominated sorting and crowding distance calculation.

[0172] Non-dominated sorting and crowding distance calculations were performed based on the first-generation population.

[0173] Step 3: Select the operation.

[0174] Based on the non-dominated sorting and crowding distance calculation results, a subset of individuals are selected to generate the next generation, with superior individuals and those with large crowding distances being more likely to be selected.

[0175] Step 4: Crossover mutation.

[0176] For the selected parent P t Perform crossover and mutation to generate new solutions as offspring Q. t Crossover mutation can introduce new solutions, thereby increasing the diversity of the population.

[0177] Step 5: Update the population.

[0178] The parent and offspring populations are merged into a population R of size 2T. t After recalculating non-dominance relationships and crowding distance, a new parent population P of size N is obtained through screening. t+1 .

[0179] Step 6: Determine the termination condition.

[0180] The iteration ends when the iteration number t is greater than T; when the iteration number t is less than the set value T, a new parent population P is established. t+1 Return to step four and repeat the loop iteration until the number of iterations t is greater than T, then end the iteration.

[0181] Step 7: Return the optimal solution set.

[0182] Step 8: Select a suitable decision variable from the optimal solution set as the target operating power of each hydrogen production unit at the current moment.

[0183] In this embodiment, an energy scheduling model is established for a hydrogen production system powered by new energy sources. A non-dominated sorting genetic algorithm is used to quickly solve the decision variables in the model, ensuring that at least one of the following is minimized: operating energy consumption and start-stop frequency, under the conditions of new energy supply, energy storage supply, or off-peak electricity. The power supply is then finely allocated, effectively improving system energy efficiency and extending equipment lifespan.

[0184] The power distribution method for a hydrogen production system provided in this application can be executed by a power distribution device 300 for the hydrogen production system. This application uses the power distribution device 300 of the hydrogen production system executing the power distribution method as an example to illustrate the power distribution device 300 for the hydrogen production system provided in this application.

[0185] This application embodiment also provides a power distribution device 300 for a hydrogen production system. The hydrogen production system includes an energy supply device 420 and a hydrogen production device 410. The hydrogen production device 410 includes multiple hydrogen production units, and the energy supply device 420 includes a new energy supply module.

[0186] like Figure 3 As shown, the power distribution device 300 of the hydrogen production system includes:

[0187] The acquisition module 310 is used to acquire the first power supply of the new energy supply module;

[0188] The first processing module 320 is used to determine the first constraint conditions of the energy dispatch model corresponding to the hydrogen production device 410 based on the first power supply.

[0189] The second processing module 330 is used to solve the energy dispatch model under the constraints of the first constraint and the second constraint of each hydrogen production unit to obtain the target operating power of each hydrogen production unit. The second constraint is used to limit the operating power of the hydrogen production unit.

[0190] The objective function of the energy scheduling model is to minimize at least one of the operating energy consumption and the number of start-ups and shutdowns of the hydrogen production unit 410, and the decision variable of the energy scheduling model is the operating power of each hydrogen production unit in the hydrogen production unit 410.

[0191] In practice, the objective function of the energy scheduling model can be to minimize the number of start-stop cycles, or to minimize both operating energy consumption and the number of start-stop cycles.

[0192] Understandably, when the objective function of the energy scheduling model is to minimize operating energy consumption and the number of start-stop cycles, corresponding weighting coefficients can be added to operating energy consumption and the number of start-stop cycles.

[0193] According to the power distribution device 300 of the hydrogen production system provided in the embodiments of this application, the first constraint condition of the energy dispatch model is determined by the first power supply of the new energy supply module, and the second constraint condition of each hydrogen production unit is combined to solve the target operating power that minimizes the operating power consumption and start-up times of the hydrogen production device 410. The device matches the fluctuation and intermittency of the new energy supply, and performs fine allocation of the power supply, effectively improving the system energy efficiency and extending the service life of the equipment.

[0194] In some embodiments, the first processing module 320 is configured to determine, based on the first power supply, the first constraint condition of the energy dispatch model corresponding to the hydrogen production device 410, including:

[0195] When the first power supply is greater than or equal to the upper limit of the operating power of the hydrogen production unit 410, the first constraint is that the power allocated by the energy dispatch model is equal to the upper limit of the operating power of the hydrogen production unit 410.

[0196] When the first power supply is less than the upper limit of the operating power of the hydrogen production unit 410, the first constraint is that the power allocated by the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production unit 410.

[0197] In some embodiments, the first processing module 320 is configured to determine, based on the first power supply, the first constraint condition of the energy dispatch model corresponding to the hydrogen production device 410, including:

[0198] If the power supply device 420 also includes an energy storage module, the first constraint condition is determined based on the first power supply power and the first state of charge of the energy storage module.

[0199] In some embodiments, when the first power supply is greater than or equal to the lower limit of the operating power of the hydrogen production device 410, and the first state of charge is between the upper and lower limits of the state of charge corresponding to the energy storage module, the first processing module 320 is configured to determine a first constraint condition based on the first power supply and the first state of charge of the energy storage module, including:

[0200] When the first power supply is greater than or equal to the upper limit of the operating power of the hydrogen production device 410, the first constraint is that the power allocated by the energy dispatch model is equal to the sum of the upper limit of the operating power of the hydrogen production device 410 and the rechargeable power of the energy storage module.

[0201] When the first power supply is less than the upper limit of the operating power of the hydrogen production unit 410, the first constraint is that the power allocated by the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production unit 410.

[0202] In some embodiments, when the first power supply is less than the lower limit of the operating power of the hydrogen production device 410 and the first state of charge is between the upper and lower limits of the state of charge corresponding to the energy storage module, the first processing module 320 is used to determine a first constraint condition based on the first power supply and the first state of charge of the energy storage module, including:

[0203] When the sum of the first power supply and the discharge power of the energy storage module is greater than or equal to the upper limit of the operating power of the hydrogen production device 410, the first constraint is that the allocated power of the energy dispatch model is equal to the upper limit of the operating power of the hydrogen production device 410.

[0204] When the sum of the first power supply and the discharge power of the energy storage module is less than the upper limit of the operating power of the hydrogen production device 410 but greater than or equal to the lower limit of the operating power of the hydrogen production device 410, the first constraint is that the power allocated by the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production device 410.

[0205] In some embodiments, when the first power supply is less than the lower limit of the operating power of the hydrogen production device 410 but greater than or equal to the lower limit of the operating power of the hydrogen production unit, and the first state of charge is less than the lower limit of the state of charge of the energy storage module, the first processing module 320 is configured to determine a first constraint condition based on the first power supply and the first state of charge of the energy storage module, including:

[0206] When the current time is during the off-peak electricity period when the hydrogen production system is connected to the grid, the first constraint is that the allocated power of the energy dispatch model is equal to the lower limit of the operating power of the hydrogen production unit 410, and the allocated power of the energy dispatch model includes the first power supply and the second power supply of the grid.

[0207] If the current time is not during the off-peak electricity period when the hydrogen production system is connected to the grid, the first constraint is that the allocated power of the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production device 410, and the allocated power of the energy dispatch model includes the first power supply.

[0208] In some embodiments, when the first power supply is less than the lower limit of the operating power of the hydrogen production unit and the first state of charge is less than the lower limit of the state of charge of the energy storage module, the first processing module 320 is configured to determine a first constraint condition based on the first power supply and the first state of charge of the energy storage module, including:

[0209] If the current time does not fall within the off-peak electricity period when the hydrogen production system is connected to the grid, the power allocation of the energy dispatch model is 0.

[0210] In some embodiments, the second processing module 330 is configured to solve the energy dispatch model under the constraints of the first constraint and the second constraint of each hydrogen production unit to obtain the target operating power of each hydrogen production unit, including:

[0211] The energy scheduling model is solved using a non-dominated sorting genetic algorithm to obtain the optimal solution set that satisfies the first and second constraints.

[0212] Based on the optimal solution set, the target operating power of each hydrogen production unit is determined.

[0213] In some embodiments, the second constraint includes that the operating power of the hydrogen production unit is within the allowable power range of the hydrogen production unit, and that when the operating power of the hydrogen production unit is less than the corresponding lower limit of operating power, the decision variable corresponding to the hydrogen production unit in the energy dispatch model is 0.

[0214] The power distribution device 300 for the hydrogen production system provided in this application embodiment can realize the various processes implemented in the above-described embodiments of the power distribution method for the hydrogen production system. To avoid repetition, it will not be described again here.

[0215] This application also provides a hydrogen production system.

[0216] like Figure 4 As shown, the hydrogen production system includes: an energy supply device 420, a hydrogen production device 410, and a power distribution device 300 for the hydrogen production system as described above.

[0217] The hydrogen production device 410 includes multiple hydrogen production units, the energy supply device 420 includes a new energy supply module, and the energy supply device 420 is connected to the hydrogen production device 410; the power distribution device 300 is connected to the energy supply device 420 and the hydrogen production device 410.

[0218] The hydrogen production unit is an operating unit used to produce hydrogen. The hydrogen production unit can be an electrolyzer, such as an alkaline water electrolyzer, a proton exchange membrane water electrolyzer, a high-temperature solid oxide water electrolyzer, or a solid polymer anion exchange membrane water electrolyzer, etc. The embodiments of this application do not limit this.

[0219] A new energy power supply module refers to an operating unit that uses renewable new energy sources to generate electricity. New energy power supply modules can be photovoltaic power generation equipment, wind power generation equipment, etc. The power supply of new energy sources such as wind and photovoltaic has the characteristics of intermittency and fluctuation.

[0220] In actual implementation, the power supply device 420 may also include a grid interface, that is, the hydrogen production system is connected to the grid, which can feed back the excess electricity provided by the new energy power supply module to the grid, or it can supply hydrogen production unit with electricity from the grid.

[0221] In some embodiments, the power supply device 420 further includes an energy storage module.

[0222] Understandably, the energy storage module can maintain the normal operation of the hydrogen production unit 410 when the output of the new energy power supply module is insufficient.

[0223] According to the hydrogen production system provided in the embodiments of this application, the first constraint condition of the energy dispatch model is determined by the first energy supply power of the new energy supply module, and the second constraint condition of each hydrogen production unit is combined to solve the target operating power that minimizes the operating power consumption and start-up times of the hydrogen production device 410. The system matches the fluctuation and intermittency of the new energy supply, and performs fine allocation of the energy supply power, effectively improving the system energy efficiency and extending the service life of the equipment.

[0224] In some embodiments, such as Figure 5 As shown, this application embodiment also provides an electronic device 500, including a processor 501, a memory 502, and a computer program stored in the memory 502 and executable on the processor 501. When the program is executed by the processor 501, it implements the various processes of the power distribution method embodiment of the hydrogen production system described above and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0225] It should be noted that the electronic devices in the embodiments of this application include the mobile electronic devices and non-mobile electronic devices described above.

[0226] This application also provides a non-transitory computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the various processes of the power distribution method embodiment of the hydrogen production system described above and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0227] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0228] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the power distribution method of the hydrogen production system described above.

[0229] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0230] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the power distribution method embodiment of the hydrogen production system described above, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0231] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0232] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0233] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0234] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

[0235] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0236] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A power distribution method for a hydrogen production system, characterized in that, The hydrogen production system includes an energy supply device and a hydrogen production device. The hydrogen production device includes multiple hydrogen production units. The energy supply device includes a new energy supply module. The method includes: Obtain the first power supply of the new energy supply module; Based on the first power supply, determine the first constraint condition of the energy dispatch model corresponding to the hydrogen production device; Under the constraints of the first constraint and the second constraint of each hydrogen production unit, the energy scheduling model is solved to obtain the target operating power of each hydrogen production unit. The second constraint is used to limit the operating power of the hydrogen production unit. The objective function of the energy scheduling model is to minimize at least one of the operating energy consumption and start-up / shutdown frequency of the hydrogen production unit, and the decision variable of the energy scheduling model is the operating power of each hydrogen production unit in the hydrogen production unit.

2. The power distribution method for a hydrogen production system according to claim 1, characterized in that, The first constraint condition for determining the energy dispatch model corresponding to the hydrogen production device based on the first power supply includes: When the first power supply is greater than or equal to the upper limit of the operating power of the hydrogen production device, the first constraint is that the power allocated by the energy dispatch model is equal to the upper limit of the operating power of the hydrogen production device. When the first power supply is less than the upper limit of the operating power of the hydrogen production device, the first constraint is that the power allocated by the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production device.

3. The power distribution method for a hydrogen production system according to claim 1, characterized in that, The first constraint condition for determining the energy dispatch model corresponding to the hydrogen production device based on the first power supply includes: If the energy supply device further includes an energy storage module, the first constraint condition is determined based on the first energy supply power and the first state of charge of the energy storage module.

4. The power distribution method for a hydrogen production system according to claim 3, characterized in that, When the first power supply is greater than or equal to the lower limit of the operating power of the hydrogen production device, and the first state of charge is between the upper and lower limits of the state of charge corresponding to the energy storage module, determining the first constraint condition based on the first power supply and the first state of charge of the energy storage module includes: When the first power supply is greater than or equal to the upper limit of the operating power of the hydrogen production device, the first constraint is that the power allocated by the energy dispatch model is equal to the sum of the upper limit of the operating power of the hydrogen production device and the rechargeable power of the energy storage module. When the first power supply is less than the upper limit of the operating power of the hydrogen production device, the first constraint is that the power allocated by the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production device.

5. The power distribution method for a hydrogen production system according to claim 3, characterized in that, When the first power supply is less than the lower limit of the operating power of the hydrogen production device, and the first state of charge is between the upper and lower limits of the state of charge corresponding to the energy storage module, determining the first constraint condition based on the first power supply and the first state of charge of the energy storage module includes: When the sum of the first power supply and the discharge power of the energy storage module is greater than or equal to the upper limit of the operating power of the hydrogen production device, the first constraint is that the allocated power of the energy dispatch model is equal to the upper limit of the operating power of the hydrogen production device. When the sum of the first power supply and the discharge power of the energy storage module is less than the upper limit of the operating power of the hydrogen production device and greater than or equal to the lower limit of the operating power of the hydrogen production device, the first constraint condition is that the allocated power of the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production device.

6. The power distribution method for a hydrogen production system according to claim 3, characterized in that, When the first power supply is less than the lower limit of the operating power of the hydrogen production device but greater than or equal to the lower limit of the operating power of the hydrogen production unit, and the first state of charge is less than the lower limit of the state of charge of the energy storage module, determining the first constraint condition based on the first power supply and the first state of charge of the energy storage module includes: When the current time is during the off-peak electricity period when the hydrogen production system is connected to the grid, the first constraint is that the allocated power of the energy dispatch model is equal to the lower limit of the operating power of the hydrogen production device, and the allocated power of the energy dispatch model includes the first power supply and the second power supply of the grid. If the current time is not during the off-peak electricity period when the hydrogen production system is connected to the power grid, the first constraint is that the allocated power of the energy dispatch model is equal to the sum of the operating power of each hydrogen production unit in the hydrogen production device, and the allocated power of the energy dispatch model includes the first power supply.

7. The power distribution method for a hydrogen production system according to claim 3, characterized in that, When the first power supply is less than the lower limit of the operating power of the hydrogen production unit and the first state of charge is less than the lower limit of the state of charge of the energy storage module, determining the first constraint condition based on the first power supply and the first state of charge of the energy storage module includes: If the current time is not during the off-peak electricity period when the hydrogen production system is connected to the power grid, the power allocated by the energy dispatch model is 0.

8. The power distribution method for a hydrogen production system according to any one of claims 1-7, characterized in that, The step of solving the energy dispatch model under the constraints of the first constraint and the second constraint of each hydrogen production unit to obtain the target operating power of each hydrogen production unit includes: The energy scheduling model is solved using a non-dominated sorting genetic algorithm to obtain the optimal solution set that satisfies the first constraint and the second constraint. Based on the optimal solution set, the target operating power of each hydrogen production unit is determined.

9. The power distribution method for a hydrogen production system according to any one of claims 1-7, characterized in that, The second constraint includes that the operating power of the hydrogen production unit is within the allowable power range of the hydrogen production unit, and that when the operating power of the hydrogen production unit is less than the corresponding lower limit of operating power, the decision variable corresponding to the hydrogen production unit in the energy scheduling model is 0.

10. A power distribution device for a hydrogen production system, characterized in that, The hydrogen production system includes an energy supply device and a hydrogen production device. The hydrogen production device includes multiple hydrogen production units. The energy supply device includes a new energy supply module. The power distribution device includes: The acquisition module is used to acquire the first power supply of the new energy supply module; The first processing module is used to determine the first constraint condition of the energy dispatch model corresponding to the hydrogen production device based on the first power supply. The second processing module is used to solve the energy scheduling model under the constraints of the first constraint and the second constraint of each hydrogen production unit to obtain the target operating power of each hydrogen production unit. The second constraint is used to limit the operating power of the hydrogen production unit. The objective function of the energy scheduling model is to minimize at least one of the operating energy consumption and start-up / shutdown frequency of the hydrogen production unit, and the decision variable of the energy scheduling model is the operating power of each hydrogen production unit in the hydrogen production unit.

11. A hydrogen production system, characterized in that, include: The device includes an energy supply unit and a hydrogen production unit, wherein the hydrogen production unit includes multiple hydrogen production units and the energy supply unit includes a new energy supply module, and the energy supply unit is connected to the hydrogen production unit. The power distribution device of the hydrogen production system as described in claim 10, wherein the power distribution device is connected to the power supply device and the hydrogen production device.

12. The hydrogen production system according to claim 11, characterized in that, The power supply device also includes an energy storage module.

13. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the power distribution method of the hydrogen production system as described in any one of claims 1-9.

14. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the power distribution method of the hydrogen production system as described in any one of claims 1-9.

15. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the power distribution method of the hydrogen production system as described in any one of claims 1-9.

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